2 * drivers/net/team/team.c - Network team device driver
3 * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
11 #include <linux/kernel.h>
12 #include <linux/types.h>
13 #include <linux/module.h>
14 #include <linux/init.h>
15 #include <linux/slab.h>
16 #include <linux/rcupdate.h>
17 #include <linux/errno.h>
18 #include <linux/ctype.h>
19 #include <linux/notifier.h>
20 #include <linux/netdevice.h>
21 #include <linux/netpoll.h>
22 #include <linux/if_vlan.h>
23 #include <linux/if_arp.h>
24 #include <linux/socket.h>
25 #include <linux/etherdevice.h>
26 #include <linux/rtnetlink.h>
27 #include <net/rtnetlink.h>
28 #include <net/genetlink.h>
29 #include <net/netlink.h>
30 #include <net/sch_generic.h>
31 #include <generated/utsrelease.h>
32 #include <linux/if_team.h>
34 #define DRV_NAME "team"
41 #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT)
43 static struct team_port
*team_port_get_rcu(const struct net_device
*dev
)
45 struct team_port
*port
= rcu_dereference(dev
->rx_handler_data
);
47 return team_port_exists(dev
) ? port
: NULL
;
50 static struct team_port
*team_port_get_rtnl(const struct net_device
*dev
)
52 struct team_port
*port
= rtnl_dereference(dev
->rx_handler_data
);
54 return team_port_exists(dev
) ? port
: NULL
;
58 * Since the ability to change device address for open port device is tested in
59 * team_port_add, this function can be called without control of return value
61 static int __set_port_dev_addr(struct net_device
*port_dev
,
62 const unsigned char *dev_addr
)
66 memcpy(addr
.sa_data
, dev_addr
, port_dev
->addr_len
);
67 addr
.sa_family
= port_dev
->type
;
68 return dev_set_mac_address(port_dev
, &addr
);
71 static int team_port_set_orig_dev_addr(struct team_port
*port
)
73 return __set_port_dev_addr(port
->dev
, port
->orig
.dev_addr
);
76 static int team_port_set_team_dev_addr(struct team
*team
,
77 struct team_port
*port
)
79 return __set_port_dev_addr(port
->dev
, team
->dev
->dev_addr
);
82 int team_modeop_port_enter(struct team
*team
, struct team_port
*port
)
84 return team_port_set_team_dev_addr(team
, port
);
86 EXPORT_SYMBOL(team_modeop_port_enter
);
88 void team_modeop_port_change_dev_addr(struct team
*team
,
89 struct team_port
*port
)
91 team_port_set_team_dev_addr(team
, port
);
93 EXPORT_SYMBOL(team_modeop_port_change_dev_addr
);
95 static void team_refresh_port_linkup(struct team_port
*port
)
97 port
->linkup
= port
->user
.linkup_enabled
? port
->user
.linkup
:
106 struct team_option_inst
{ /* One for each option instance */
107 struct list_head list
;
108 struct list_head tmp_list
;
109 struct team_option
*option
;
110 struct team_option_inst_info info
;
115 static struct team_option
*__team_find_option(struct team
*team
,
116 const char *opt_name
)
118 struct team_option
*option
;
120 list_for_each_entry(option
, &team
->option_list
, list
) {
121 if (strcmp(option
->name
, opt_name
) == 0)
127 static void __team_option_inst_del(struct team_option_inst
*opt_inst
)
129 list_del(&opt_inst
->list
);
133 static void __team_option_inst_del_option(struct team
*team
,
134 struct team_option
*option
)
136 struct team_option_inst
*opt_inst
, *tmp
;
138 list_for_each_entry_safe(opt_inst
, tmp
, &team
->option_inst_list
, list
) {
139 if (opt_inst
->option
== option
)
140 __team_option_inst_del(opt_inst
);
144 static int __team_option_inst_add(struct team
*team
, struct team_option
*option
,
145 struct team_port
*port
)
147 struct team_option_inst
*opt_inst
;
148 unsigned int array_size
;
152 array_size
= option
->array_size
;
154 array_size
= 1; /* No array but still need one instance */
156 for (i
= 0; i
< array_size
; i
++) {
157 opt_inst
= kmalloc(sizeof(*opt_inst
), GFP_KERNEL
);
160 opt_inst
->option
= option
;
161 opt_inst
->info
.port
= port
;
162 opt_inst
->info
.array_index
= i
;
163 opt_inst
->changed
= true;
164 opt_inst
->removed
= false;
165 list_add_tail(&opt_inst
->list
, &team
->option_inst_list
);
167 err
= option
->init(team
, &opt_inst
->info
);
176 static int __team_option_inst_add_option(struct team
*team
,
177 struct team_option
*option
)
179 struct team_port
*port
;
182 if (!option
->per_port
) {
183 err
= __team_option_inst_add(team
, option
, NULL
);
185 goto inst_del_option
;
188 list_for_each_entry(port
, &team
->port_list
, list
) {
189 err
= __team_option_inst_add(team
, option
, port
);
191 goto inst_del_option
;
196 __team_option_inst_del_option(team
, option
);
200 static void __team_option_inst_mark_removed_option(struct team
*team
,
201 struct team_option
*option
)
203 struct team_option_inst
*opt_inst
;
205 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
206 if (opt_inst
->option
== option
) {
207 opt_inst
->changed
= true;
208 opt_inst
->removed
= true;
213 static void __team_option_inst_del_port(struct team
*team
,
214 struct team_port
*port
)
216 struct team_option_inst
*opt_inst
, *tmp
;
218 list_for_each_entry_safe(opt_inst
, tmp
, &team
->option_inst_list
, list
) {
219 if (opt_inst
->option
->per_port
&&
220 opt_inst
->info
.port
== port
)
221 __team_option_inst_del(opt_inst
);
225 static int __team_option_inst_add_port(struct team
*team
,
226 struct team_port
*port
)
228 struct team_option
*option
;
231 list_for_each_entry(option
, &team
->option_list
, list
) {
232 if (!option
->per_port
)
234 err
= __team_option_inst_add(team
, option
, port
);
241 __team_option_inst_del_port(team
, port
);
245 static void __team_option_inst_mark_removed_port(struct team
*team
,
246 struct team_port
*port
)
248 struct team_option_inst
*opt_inst
;
250 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
251 if (opt_inst
->info
.port
== port
) {
252 opt_inst
->changed
= true;
253 opt_inst
->removed
= true;
258 static int __team_options_register(struct team
*team
,
259 const struct team_option
*option
,
263 struct team_option
**dst_opts
;
266 dst_opts
= kzalloc(sizeof(struct team_option
*) * option_count
,
270 for (i
= 0; i
< option_count
; i
++, option
++) {
271 if (__team_find_option(team
, option
->name
)) {
275 dst_opts
[i
] = kmemdup(option
, sizeof(*option
), GFP_KERNEL
);
282 for (i
= 0; i
< option_count
; i
++) {
283 err
= __team_option_inst_add_option(team
, dst_opts
[i
]);
286 list_add_tail(&dst_opts
[i
]->list
, &team
->option_list
);
293 for (i
--; i
>= 0; i
--)
294 __team_option_inst_del_option(team
, dst_opts
[i
]);
296 i
= option_count
- 1;
298 for (i
--; i
>= 0; i
--)
305 static void __team_options_mark_removed(struct team
*team
,
306 const struct team_option
*option
,
311 for (i
= 0; i
< option_count
; i
++, option
++) {
312 struct team_option
*del_opt
;
314 del_opt
= __team_find_option(team
, option
->name
);
316 __team_option_inst_mark_removed_option(team
, del_opt
);
320 static void __team_options_unregister(struct team
*team
,
321 const struct team_option
*option
,
326 for (i
= 0; i
< option_count
; i
++, option
++) {
327 struct team_option
*del_opt
;
329 del_opt
= __team_find_option(team
, option
->name
);
331 __team_option_inst_del_option(team
, del_opt
);
332 list_del(&del_opt
->list
);
338 static void __team_options_change_check(struct team
*team
);
340 int team_options_register(struct team
*team
,
341 const struct team_option
*option
,
346 err
= __team_options_register(team
, option
, option_count
);
349 __team_options_change_check(team
);
352 EXPORT_SYMBOL(team_options_register
);
354 void team_options_unregister(struct team
*team
,
355 const struct team_option
*option
,
358 __team_options_mark_removed(team
, option
, option_count
);
359 __team_options_change_check(team
);
360 __team_options_unregister(team
, option
, option_count
);
362 EXPORT_SYMBOL(team_options_unregister
);
364 static int team_option_get(struct team
*team
,
365 struct team_option_inst
*opt_inst
,
366 struct team_gsetter_ctx
*ctx
)
368 if (!opt_inst
->option
->getter
)
370 return opt_inst
->option
->getter(team
, ctx
);
373 static int team_option_set(struct team
*team
,
374 struct team_option_inst
*opt_inst
,
375 struct team_gsetter_ctx
*ctx
)
377 if (!opt_inst
->option
->setter
)
379 return opt_inst
->option
->setter(team
, ctx
);
382 void team_option_inst_set_change(struct team_option_inst_info
*opt_inst_info
)
384 struct team_option_inst
*opt_inst
;
386 opt_inst
= container_of(opt_inst_info
, struct team_option_inst
, info
);
387 opt_inst
->changed
= true;
389 EXPORT_SYMBOL(team_option_inst_set_change
);
391 void team_options_change_check(struct team
*team
)
393 __team_options_change_check(team
);
395 EXPORT_SYMBOL(team_options_change_check
);
402 static LIST_HEAD(mode_list
);
403 static DEFINE_SPINLOCK(mode_list_lock
);
405 struct team_mode_item
{
406 struct list_head list
;
407 const struct team_mode
*mode
;
410 static struct team_mode_item
*__find_mode(const char *kind
)
412 struct team_mode_item
*mitem
;
414 list_for_each_entry(mitem
, &mode_list
, list
) {
415 if (strcmp(mitem
->mode
->kind
, kind
) == 0)
421 static bool is_good_mode_name(const char *name
)
423 while (*name
!= '\0') {
424 if (!isalpha(*name
) && !isdigit(*name
) && *name
!= '_')
431 int team_mode_register(const struct team_mode
*mode
)
434 struct team_mode_item
*mitem
;
436 if (!is_good_mode_name(mode
->kind
) ||
437 mode
->priv_size
> TEAM_MODE_PRIV_SIZE
)
440 mitem
= kmalloc(sizeof(*mitem
), GFP_KERNEL
);
444 spin_lock(&mode_list_lock
);
445 if (__find_mode(mode
->kind
)) {
451 list_add_tail(&mitem
->list
, &mode_list
);
453 spin_unlock(&mode_list_lock
);
456 EXPORT_SYMBOL(team_mode_register
);
458 void team_mode_unregister(const struct team_mode
*mode
)
460 struct team_mode_item
*mitem
;
462 spin_lock(&mode_list_lock
);
463 mitem
= __find_mode(mode
->kind
);
465 list_del_init(&mitem
->list
);
468 spin_unlock(&mode_list_lock
);
470 EXPORT_SYMBOL(team_mode_unregister
);
472 static const struct team_mode
*team_mode_get(const char *kind
)
474 struct team_mode_item
*mitem
;
475 const struct team_mode
*mode
= NULL
;
477 spin_lock(&mode_list_lock
);
478 mitem
= __find_mode(kind
);
480 spin_unlock(&mode_list_lock
);
481 request_module("team-mode-%s", kind
);
482 spin_lock(&mode_list_lock
);
483 mitem
= __find_mode(kind
);
487 if (!try_module_get(mode
->owner
))
491 spin_unlock(&mode_list_lock
);
495 static void team_mode_put(const struct team_mode
*mode
)
497 module_put(mode
->owner
);
500 static bool team_dummy_transmit(struct team
*team
, struct sk_buff
*skb
)
502 dev_kfree_skb_any(skb
);
506 static rx_handler_result_t
team_dummy_receive(struct team
*team
,
507 struct team_port
*port
,
510 return RX_HANDLER_ANOTHER
;
513 static const struct team_mode __team_no_mode
= {
517 static bool team_is_mode_set(struct team
*team
)
519 return team
->mode
!= &__team_no_mode
;
522 static void team_set_no_mode(struct team
*team
)
524 team
->user_carrier_enabled
= false;
525 team
->mode
= &__team_no_mode
;
528 static void __team_adjust_ops(struct team
*team
, int en_port_count
)
531 * To avoid checks in rx/tx skb paths, ensure here that non-null and
532 * correct ops are always set.
535 if (!en_port_count
|| !team_is_mode_set(team
) ||
536 !team
->mode
->ops
->transmit
)
537 team
->ops
.transmit
= team_dummy_transmit
;
539 team
->ops
.transmit
= team
->mode
->ops
->transmit
;
541 if (!en_port_count
|| !team_is_mode_set(team
) ||
542 !team
->mode
->ops
->receive
)
543 team
->ops
.receive
= team_dummy_receive
;
545 team
->ops
.receive
= team
->mode
->ops
->receive
;
548 static void team_adjust_ops(struct team
*team
)
550 __team_adjust_ops(team
, team
->en_port_count
);
554 * We can benefit from the fact that it's ensured no port is present
555 * at the time of mode change. Therefore no packets are in fly so there's no
556 * need to set mode operations in any special way.
558 static int __team_change_mode(struct team
*team
,
559 const struct team_mode
*new_mode
)
561 /* Check if mode was previously set and do cleanup if so */
562 if (team_is_mode_set(team
)) {
563 void (*exit_op
)(struct team
*team
) = team
->ops
.exit
;
565 /* Clear ops area so no callback is called any longer */
566 memset(&team
->ops
, 0, sizeof(struct team_mode_ops
));
567 team_adjust_ops(team
);
571 team_mode_put(team
->mode
);
572 team_set_no_mode(team
);
573 /* zero private data area */
574 memset(&team
->mode_priv
, 0,
575 sizeof(struct team
) - offsetof(struct team
, mode_priv
));
581 if (new_mode
->ops
->init
) {
584 err
= new_mode
->ops
->init(team
);
589 team
->mode
= new_mode
;
590 memcpy(&team
->ops
, new_mode
->ops
, sizeof(struct team_mode_ops
));
591 team_adjust_ops(team
);
596 static int team_change_mode(struct team
*team
, const char *kind
)
598 const struct team_mode
*new_mode
;
599 struct net_device
*dev
= team
->dev
;
602 if (!list_empty(&team
->port_list
)) {
603 netdev_err(dev
, "No ports can be present during mode change\n");
607 if (team_is_mode_set(team
) && strcmp(team
->mode
->kind
, kind
) == 0) {
608 netdev_err(dev
, "Unable to change to the same mode the team is in\n");
612 new_mode
= team_mode_get(kind
);
614 netdev_err(dev
, "Mode \"%s\" not found\n", kind
);
618 err
= __team_change_mode(team
, new_mode
);
620 netdev_err(dev
, "Failed to change to mode \"%s\"\n", kind
);
621 team_mode_put(new_mode
);
625 netdev_info(dev
, "Mode changed to \"%s\"\n", kind
);
630 /************************
631 * Rx path frame handler
632 ************************/
634 /* note: already called with rcu_read_lock */
635 static rx_handler_result_t
team_handle_frame(struct sk_buff
**pskb
)
637 struct sk_buff
*skb
= *pskb
;
638 struct team_port
*port
;
640 rx_handler_result_t res
;
642 skb
= skb_share_check(skb
, GFP_ATOMIC
);
644 return RX_HANDLER_CONSUMED
;
648 port
= team_port_get_rcu(skb
->dev
);
650 if (!team_port_enabled(port
)) {
651 /* allow exact match delivery for disabled ports */
652 res
= RX_HANDLER_EXACT
;
654 res
= team
->ops
.receive(team
, port
, skb
);
656 if (res
== RX_HANDLER_ANOTHER
) {
657 struct team_pcpu_stats
*pcpu_stats
;
659 pcpu_stats
= this_cpu_ptr(team
->pcpu_stats
);
660 u64_stats_update_begin(&pcpu_stats
->syncp
);
661 pcpu_stats
->rx_packets
++;
662 pcpu_stats
->rx_bytes
+= skb
->len
;
663 if (skb
->pkt_type
== PACKET_MULTICAST
)
664 pcpu_stats
->rx_multicast
++;
665 u64_stats_update_end(&pcpu_stats
->syncp
);
667 skb
->dev
= team
->dev
;
669 this_cpu_inc(team
->pcpu_stats
->rx_dropped
);
676 /*************************************
677 * Multiqueue Tx port select override
678 *************************************/
680 static int team_queue_override_init(struct team
*team
)
682 struct list_head
*listarr
;
683 unsigned int queue_cnt
= team
->dev
->num_tx_queues
- 1;
688 listarr
= kmalloc(sizeof(struct list_head
) * queue_cnt
, GFP_KERNEL
);
691 team
->qom_lists
= listarr
;
692 for (i
= 0; i
< queue_cnt
; i
++)
693 INIT_LIST_HEAD(listarr
++);
697 static void team_queue_override_fini(struct team
*team
)
699 kfree(team
->qom_lists
);
702 static struct list_head
*__team_get_qom_list(struct team
*team
, u16 queue_id
)
704 return &team
->qom_lists
[queue_id
- 1];
708 * note: already called with rcu_read_lock
710 static bool team_queue_override_transmit(struct team
*team
, struct sk_buff
*skb
)
712 struct list_head
*qom_list
;
713 struct team_port
*port
;
715 if (!team
->queue_override_enabled
|| !skb
->queue_mapping
)
717 qom_list
= __team_get_qom_list(team
, skb
->queue_mapping
);
718 list_for_each_entry_rcu(port
, qom_list
, qom_list
) {
719 if (!team_dev_queue_xmit(team
, port
, skb
))
725 static void __team_queue_override_port_del(struct team
*team
,
726 struct team_port
*port
)
728 list_del_rcu(&port
->qom_list
);
730 INIT_LIST_HEAD(&port
->qom_list
);
733 static bool team_queue_override_port_has_gt_prio_than(struct team_port
*port
,
734 struct team_port
*cur
)
736 if (port
->priority
< cur
->priority
)
738 if (port
->priority
> cur
->priority
)
740 if (port
->index
< cur
->index
)
745 static void __team_queue_override_port_add(struct team
*team
,
746 struct team_port
*port
)
748 struct team_port
*cur
;
749 struct list_head
*qom_list
;
750 struct list_head
*node
;
752 if (!port
->queue_id
|| !team_port_enabled(port
))
755 qom_list
= __team_get_qom_list(team
, port
->queue_id
);
757 list_for_each_entry(cur
, qom_list
, qom_list
) {
758 if (team_queue_override_port_has_gt_prio_than(port
, cur
))
760 node
= &cur
->qom_list
;
762 list_add_tail_rcu(&port
->qom_list
, node
);
765 static void __team_queue_override_enabled_check(struct team
*team
)
767 struct team_port
*port
;
768 bool enabled
= false;
770 list_for_each_entry(port
, &team
->port_list
, list
) {
771 if (!list_empty(&port
->qom_list
)) {
776 if (enabled
== team
->queue_override_enabled
)
778 netdev_dbg(team
->dev
, "%s queue override\n",
779 enabled
? "Enabling" : "Disabling");
780 team
->queue_override_enabled
= enabled
;
783 static void team_queue_override_port_refresh(struct team
*team
,
784 struct team_port
*port
)
786 __team_queue_override_port_del(team
, port
);
787 __team_queue_override_port_add(team
, port
);
788 __team_queue_override_enabled_check(team
);
796 static bool team_port_find(const struct team
*team
,
797 const struct team_port
*port
)
799 struct team_port
*cur
;
801 list_for_each_entry(cur
, &team
->port_list
, list
)
808 * Enable/disable port by adding to enabled port hashlist and setting
809 * port->index (Might be racy so reader could see incorrect ifindex when
810 * processing a flying packet, but that is not a problem). Write guarded
813 static void team_port_enable(struct team
*team
,
814 struct team_port
*port
)
816 if (team_port_enabled(port
))
818 port
->index
= team
->en_port_count
++;
819 hlist_add_head_rcu(&port
->hlist
,
820 team_port_index_hash(team
, port
->index
));
821 team_adjust_ops(team
);
822 team_queue_override_port_refresh(team
, port
);
823 if (team
->ops
.port_enabled
)
824 team
->ops
.port_enabled(team
, port
);
827 static void __reconstruct_port_hlist(struct team
*team
, int rm_index
)
830 struct team_port
*port
;
832 for (i
= rm_index
+ 1; i
< team
->en_port_count
; i
++) {
833 port
= team_get_port_by_index(team
, i
);
834 hlist_del_rcu(&port
->hlist
);
836 hlist_add_head_rcu(&port
->hlist
,
837 team_port_index_hash(team
, port
->index
));
841 static void team_port_disable(struct team
*team
,
842 struct team_port
*port
)
844 if (!team_port_enabled(port
))
846 if (team
->ops
.port_disabled
)
847 team
->ops
.port_disabled(team
, port
);
848 hlist_del_rcu(&port
->hlist
);
849 __reconstruct_port_hlist(team
, port
->index
);
851 team_queue_override_port_refresh(team
, port
);
852 __team_adjust_ops(team
, team
->en_port_count
- 1);
854 * Wait until readers see adjusted ops. This ensures that
855 * readers never see team->en_port_count == 0
858 team
->en_port_count
--;
861 #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \
862 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
863 NETIF_F_HIGHDMA | NETIF_F_LRO)
865 static void __team_compute_features(struct team
*team
)
867 struct team_port
*port
;
868 u32 vlan_features
= TEAM_VLAN_FEATURES
;
869 unsigned short max_hard_header_len
= ETH_HLEN
;
870 unsigned int flags
, dst_release_flag
= IFF_XMIT_DST_RELEASE
;
872 list_for_each_entry(port
, &team
->port_list
, list
) {
873 vlan_features
= netdev_increment_features(vlan_features
,
874 port
->dev
->vlan_features
,
877 dst_release_flag
&= port
->dev
->priv_flags
;
878 if (port
->dev
->hard_header_len
> max_hard_header_len
)
879 max_hard_header_len
= port
->dev
->hard_header_len
;
882 team
->dev
->vlan_features
= vlan_features
;
883 team
->dev
->hard_header_len
= max_hard_header_len
;
885 flags
= team
->dev
->priv_flags
& ~IFF_XMIT_DST_RELEASE
;
886 team
->dev
->priv_flags
= flags
| dst_release_flag
;
888 netdev_change_features(team
->dev
);
891 static void team_compute_features(struct team
*team
)
893 mutex_lock(&team
->lock
);
894 __team_compute_features(team
);
895 mutex_unlock(&team
->lock
);
898 static int team_port_enter(struct team
*team
, struct team_port
*port
)
903 port
->dev
->priv_flags
|= IFF_TEAM_PORT
;
904 if (team
->ops
.port_enter
) {
905 err
= team
->ops
.port_enter(team
, port
);
907 netdev_err(team
->dev
, "Device %s failed to enter team mode\n",
916 port
->dev
->priv_flags
&= ~IFF_TEAM_PORT
;
922 static void team_port_leave(struct team
*team
, struct team_port
*port
)
924 if (team
->ops
.port_leave
)
925 team
->ops
.port_leave(team
, port
);
926 port
->dev
->priv_flags
&= ~IFF_TEAM_PORT
;
930 #ifdef CONFIG_NET_POLL_CONTROLLER
931 static int team_port_enable_netpoll(struct team
*team
, struct team_port
*port
,
937 np
= kzalloc(sizeof(*np
), gfp
);
941 err
= __netpoll_setup(np
, port
->dev
, gfp
);
950 static void team_port_disable_netpoll(struct team_port
*port
)
952 struct netpoll
*np
= port
->np
;
958 /* Wait for transmitting packets to finish before freeing. */
959 synchronize_rcu_bh();
960 __netpoll_cleanup(np
);
964 static struct netpoll_info
*team_netpoll_info(struct team
*team
)
966 return team
->dev
->npinfo
;
970 static int team_port_enable_netpoll(struct team
*team
, struct team_port
*port
,
975 static void team_port_disable_netpoll(struct team_port
*port
)
978 static struct netpoll_info
*team_netpoll_info(struct team
*team
)
984 static void __team_port_change_port_added(struct team_port
*port
, bool linkup
);
985 static int team_dev_type_check_change(struct net_device
*dev
,
986 struct net_device
*port_dev
);
988 static int team_port_add(struct team
*team
, struct net_device
*port_dev
)
990 struct net_device
*dev
= team
->dev
;
991 struct team_port
*port
;
992 char *portname
= port_dev
->name
;
995 if (port_dev
->flags
& IFF_LOOPBACK
) {
996 netdev_err(dev
, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
1001 if (team_port_exists(port_dev
)) {
1002 netdev_err(dev
, "Device %s is already a port "
1003 "of a team device\n", portname
);
1007 if (port_dev
->features
& NETIF_F_VLAN_CHALLENGED
&&
1008 vlan_uses_dev(dev
)) {
1009 netdev_err(dev
, "Device %s is VLAN challenged and team device has VLAN set up\n",
1014 err
= team_dev_type_check_change(dev
, port_dev
);
1018 if (port_dev
->flags
& IFF_UP
) {
1019 netdev_err(dev
, "Device %s is up. Set it down before adding it as a team port\n",
1024 port
= kzalloc(sizeof(struct team_port
) + team
->mode
->port_priv_size
,
1029 port
->dev
= port_dev
;
1031 INIT_LIST_HEAD(&port
->qom_list
);
1033 port
->orig
.mtu
= port_dev
->mtu
;
1034 err
= dev_set_mtu(port_dev
, dev
->mtu
);
1036 netdev_dbg(dev
, "Error %d calling dev_set_mtu\n", err
);
1040 memcpy(port
->orig
.dev_addr
, port_dev
->dev_addr
, port_dev
->addr_len
);
1042 err
= team_port_enter(team
, port
);
1044 netdev_err(dev
, "Device %s failed to enter team mode\n",
1046 goto err_port_enter
;
1049 err
= dev_open(port_dev
);
1051 netdev_dbg(dev
, "Device %s opening failed\n",
1056 err
= vlan_vids_add_by_dev(port_dev
, dev
);
1058 netdev_err(dev
, "Failed to add vlan ids to device %s\n",
1063 if (team_netpoll_info(team
)) {
1064 err
= team_port_enable_netpoll(team
, port
, GFP_KERNEL
);
1066 netdev_err(dev
, "Failed to enable netpoll on device %s\n",
1068 goto err_enable_netpoll
;
1072 err
= netdev_master_upper_dev_link(port_dev
, dev
);
1074 netdev_err(dev
, "Device %s failed to set upper link\n",
1076 goto err_set_upper_link
;
1079 err
= netdev_rx_handler_register(port_dev
, team_handle_frame
,
1082 netdev_err(dev
, "Device %s failed to register rx_handler\n",
1084 goto err_handler_register
;
1087 err
= __team_option_inst_add_port(team
, port
);
1089 netdev_err(dev
, "Device %s failed to add per-port options\n",
1091 goto err_option_port_add
;
1095 team_port_enable(team
, port
);
1096 list_add_tail_rcu(&port
->list
, &team
->port_list
);
1097 __team_compute_features(team
);
1098 __team_port_change_port_added(port
, !!netif_carrier_ok(port_dev
));
1099 __team_options_change_check(team
);
1101 netdev_info(dev
, "Port device %s added\n", portname
);
1105 err_option_port_add
:
1106 netdev_rx_handler_unregister(port_dev
);
1108 err_handler_register
:
1109 netdev_upper_dev_unlink(port_dev
, dev
);
1112 team_port_disable_netpoll(port
);
1115 vlan_vids_del_by_dev(port_dev
, dev
);
1118 dev_close(port_dev
);
1121 team_port_leave(team
, port
);
1122 team_port_set_orig_dev_addr(port
);
1125 dev_set_mtu(port_dev
, port
->orig
.mtu
);
1133 static void __team_port_change_port_removed(struct team_port
*port
);
1135 static int team_port_del(struct team
*team
, struct net_device
*port_dev
)
1137 struct net_device
*dev
= team
->dev
;
1138 struct team_port
*port
;
1139 char *portname
= port_dev
->name
;
1141 port
= team_port_get_rtnl(port_dev
);
1142 if (!port
|| !team_port_find(team
, port
)) {
1143 netdev_err(dev
, "Device %s does not act as a port of this team\n",
1148 team_port_disable(team
, port
);
1149 list_del_rcu(&port
->list
);
1150 netdev_rx_handler_unregister(port_dev
);
1151 netdev_upper_dev_unlink(port_dev
, dev
);
1152 team_port_disable_netpoll(port
);
1153 vlan_vids_del_by_dev(port_dev
, dev
);
1154 dev_uc_unsync(port_dev
, dev
);
1155 dev_mc_unsync(port_dev
, dev
);
1156 dev_close(port_dev
);
1157 team_port_leave(team
, port
);
1159 __team_option_inst_mark_removed_port(team
, port
);
1160 __team_options_change_check(team
);
1161 __team_option_inst_del_port(team
, port
);
1162 __team_port_change_port_removed(port
);
1164 team_port_set_orig_dev_addr(port
);
1165 dev_set_mtu(port_dev
, port
->orig
.mtu
);
1168 netdev_info(dev
, "Port device %s removed\n", portname
);
1169 __team_compute_features(team
);
1179 static int team_mode_option_get(struct team
*team
, struct team_gsetter_ctx
*ctx
)
1181 ctx
->data
.str_val
= team
->mode
->kind
;
1185 static int team_mode_option_set(struct team
*team
, struct team_gsetter_ctx
*ctx
)
1187 return team_change_mode(team
, ctx
->data
.str_val
);
1190 static int team_port_en_option_get(struct team
*team
,
1191 struct team_gsetter_ctx
*ctx
)
1193 struct team_port
*port
= ctx
->info
->port
;
1195 ctx
->data
.bool_val
= team_port_enabled(port
);
1199 static int team_port_en_option_set(struct team
*team
,
1200 struct team_gsetter_ctx
*ctx
)
1202 struct team_port
*port
= ctx
->info
->port
;
1204 if (ctx
->data
.bool_val
)
1205 team_port_enable(team
, port
);
1207 team_port_disable(team
, port
);
1211 static int team_user_linkup_option_get(struct team
*team
,
1212 struct team_gsetter_ctx
*ctx
)
1214 struct team_port
*port
= ctx
->info
->port
;
1216 ctx
->data
.bool_val
= port
->user
.linkup
;
1220 static int team_user_linkup_option_set(struct team
*team
,
1221 struct team_gsetter_ctx
*ctx
)
1223 struct team_port
*port
= ctx
->info
->port
;
1225 port
->user
.linkup
= ctx
->data
.bool_val
;
1226 team_refresh_port_linkup(port
);
1230 static int team_user_linkup_en_option_get(struct team
*team
,
1231 struct team_gsetter_ctx
*ctx
)
1233 struct team_port
*port
= ctx
->info
->port
;
1235 ctx
->data
.bool_val
= port
->user
.linkup_enabled
;
1239 static int team_user_linkup_en_option_set(struct team
*team
,
1240 struct team_gsetter_ctx
*ctx
)
1242 struct team_port
*port
= ctx
->info
->port
;
1244 port
->user
.linkup_enabled
= ctx
->data
.bool_val
;
1245 team_refresh_port_linkup(port
);
1249 static int team_priority_option_get(struct team
*team
,
1250 struct team_gsetter_ctx
*ctx
)
1252 struct team_port
*port
= ctx
->info
->port
;
1254 ctx
->data
.s32_val
= port
->priority
;
1258 static int team_priority_option_set(struct team
*team
,
1259 struct team_gsetter_ctx
*ctx
)
1261 struct team_port
*port
= ctx
->info
->port
;
1263 port
->priority
= ctx
->data
.s32_val
;
1264 team_queue_override_port_refresh(team
, port
);
1268 static int team_queue_id_option_get(struct team
*team
,
1269 struct team_gsetter_ctx
*ctx
)
1271 struct team_port
*port
= ctx
->info
->port
;
1273 ctx
->data
.u32_val
= port
->queue_id
;
1277 static int team_queue_id_option_set(struct team
*team
,
1278 struct team_gsetter_ctx
*ctx
)
1280 struct team_port
*port
= ctx
->info
->port
;
1282 if (port
->queue_id
== ctx
->data
.u32_val
)
1284 if (ctx
->data
.u32_val
>= team
->dev
->real_num_tx_queues
)
1286 port
->queue_id
= ctx
->data
.u32_val
;
1287 team_queue_override_port_refresh(team
, port
);
1292 static const struct team_option team_options
[] = {
1295 .type
= TEAM_OPTION_TYPE_STRING
,
1296 .getter
= team_mode_option_get
,
1297 .setter
= team_mode_option_set
,
1301 .type
= TEAM_OPTION_TYPE_BOOL
,
1303 .getter
= team_port_en_option_get
,
1304 .setter
= team_port_en_option_set
,
1307 .name
= "user_linkup",
1308 .type
= TEAM_OPTION_TYPE_BOOL
,
1310 .getter
= team_user_linkup_option_get
,
1311 .setter
= team_user_linkup_option_set
,
1314 .name
= "user_linkup_enabled",
1315 .type
= TEAM_OPTION_TYPE_BOOL
,
1317 .getter
= team_user_linkup_en_option_get
,
1318 .setter
= team_user_linkup_en_option_set
,
1322 .type
= TEAM_OPTION_TYPE_S32
,
1324 .getter
= team_priority_option_get
,
1325 .setter
= team_priority_option_set
,
1329 .type
= TEAM_OPTION_TYPE_U32
,
1331 .getter
= team_queue_id_option_get
,
1332 .setter
= team_queue_id_option_set
,
1336 static struct lock_class_key team_netdev_xmit_lock_key
;
1337 static struct lock_class_key team_netdev_addr_lock_key
;
1338 static struct lock_class_key team_tx_busylock_key
;
1340 static void team_set_lockdep_class_one(struct net_device
*dev
,
1341 struct netdev_queue
*txq
,
1344 lockdep_set_class(&txq
->_xmit_lock
, &team_netdev_xmit_lock_key
);
1347 static void team_set_lockdep_class(struct net_device
*dev
)
1349 lockdep_set_class(&dev
->addr_list_lock
, &team_netdev_addr_lock_key
);
1350 netdev_for_each_tx_queue(dev
, team_set_lockdep_class_one
, NULL
);
1351 dev
->qdisc_tx_busylock
= &team_tx_busylock_key
;
1354 static int team_init(struct net_device
*dev
)
1356 struct team
*team
= netdev_priv(dev
);
1361 mutex_init(&team
->lock
);
1362 team_set_no_mode(team
);
1364 team
->pcpu_stats
= alloc_percpu(struct team_pcpu_stats
);
1365 if (!team
->pcpu_stats
)
1368 for (i
= 0; i
< TEAM_PORT_HASHENTRIES
; i
++)
1369 INIT_HLIST_HEAD(&team
->en_port_hlist
[i
]);
1370 INIT_LIST_HEAD(&team
->port_list
);
1371 err
= team_queue_override_init(team
);
1373 goto err_team_queue_override_init
;
1375 team_adjust_ops(team
);
1377 INIT_LIST_HEAD(&team
->option_list
);
1378 INIT_LIST_HEAD(&team
->option_inst_list
);
1379 err
= team_options_register(team
, team_options
, ARRAY_SIZE(team_options
));
1381 goto err_options_register
;
1382 netif_carrier_off(dev
);
1384 team_set_lockdep_class(dev
);
1388 err_options_register
:
1389 team_queue_override_fini(team
);
1390 err_team_queue_override_init
:
1391 free_percpu(team
->pcpu_stats
);
1396 static void team_uninit(struct net_device
*dev
)
1398 struct team
*team
= netdev_priv(dev
);
1399 struct team_port
*port
;
1400 struct team_port
*tmp
;
1402 mutex_lock(&team
->lock
);
1403 list_for_each_entry_safe(port
, tmp
, &team
->port_list
, list
)
1404 team_port_del(team
, port
->dev
);
1406 __team_change_mode(team
, NULL
); /* cleanup */
1407 __team_options_unregister(team
, team_options
, ARRAY_SIZE(team_options
));
1408 team_queue_override_fini(team
);
1409 mutex_unlock(&team
->lock
);
1412 static void team_destructor(struct net_device
*dev
)
1414 struct team
*team
= netdev_priv(dev
);
1416 free_percpu(team
->pcpu_stats
);
1420 static int team_open(struct net_device
*dev
)
1425 static int team_close(struct net_device
*dev
)
1431 * note: already called with rcu_read_lock
1433 static netdev_tx_t
team_xmit(struct sk_buff
*skb
, struct net_device
*dev
)
1435 struct team
*team
= netdev_priv(dev
);
1437 unsigned int len
= skb
->len
;
1439 tx_success
= team_queue_override_transmit(team
, skb
);
1441 tx_success
= team
->ops
.transmit(team
, skb
);
1443 struct team_pcpu_stats
*pcpu_stats
;
1445 pcpu_stats
= this_cpu_ptr(team
->pcpu_stats
);
1446 u64_stats_update_begin(&pcpu_stats
->syncp
);
1447 pcpu_stats
->tx_packets
++;
1448 pcpu_stats
->tx_bytes
+= len
;
1449 u64_stats_update_end(&pcpu_stats
->syncp
);
1451 this_cpu_inc(team
->pcpu_stats
->tx_dropped
);
1454 return NETDEV_TX_OK
;
1457 static u16
team_select_queue(struct net_device
*dev
, struct sk_buff
*skb
)
1460 * This helper function exists to help dev_pick_tx get the correct
1461 * destination queue. Using a helper function skips a call to
1462 * skb_tx_hash and will put the skbs in the queue we expect on their
1463 * way down to the team driver.
1465 u16 txq
= skb_rx_queue_recorded(skb
) ? skb_get_rx_queue(skb
) : 0;
1468 * Save the original txq to restore before passing to the driver
1470 qdisc_skb_cb(skb
)->slave_dev_queue_mapping
= skb
->queue_mapping
;
1472 if (unlikely(txq
>= dev
->real_num_tx_queues
)) {
1474 txq
-= dev
->real_num_tx_queues
;
1475 } while (txq
>= dev
->real_num_tx_queues
);
1480 static void team_change_rx_flags(struct net_device
*dev
, int change
)
1482 struct team
*team
= netdev_priv(dev
);
1483 struct team_port
*port
;
1487 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1488 if (change
& IFF_PROMISC
) {
1489 inc
= dev
->flags
& IFF_PROMISC
? 1 : -1;
1490 dev_set_promiscuity(port
->dev
, inc
);
1492 if (change
& IFF_ALLMULTI
) {
1493 inc
= dev
->flags
& IFF_ALLMULTI
? 1 : -1;
1494 dev_set_allmulti(port
->dev
, inc
);
1500 static void team_set_rx_mode(struct net_device
*dev
)
1502 struct team
*team
= netdev_priv(dev
);
1503 struct team_port
*port
;
1506 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1507 dev_uc_sync_multiple(port
->dev
, dev
);
1508 dev_mc_sync_multiple(port
->dev
, dev
);
1513 static int team_set_mac_address(struct net_device
*dev
, void *p
)
1515 struct sockaddr
*addr
= p
;
1516 struct team
*team
= netdev_priv(dev
);
1517 struct team_port
*port
;
1519 if (dev
->type
== ARPHRD_ETHER
&& !is_valid_ether_addr(addr
->sa_data
))
1520 return -EADDRNOTAVAIL
;
1521 memcpy(dev
->dev_addr
, addr
->sa_data
, dev
->addr_len
);
1523 list_for_each_entry_rcu(port
, &team
->port_list
, list
)
1524 if (team
->ops
.port_change_dev_addr
)
1525 team
->ops
.port_change_dev_addr(team
, port
);
1530 static int team_change_mtu(struct net_device
*dev
, int new_mtu
)
1532 struct team
*team
= netdev_priv(dev
);
1533 struct team_port
*port
;
1537 * Alhough this is reader, it's guarded by team lock. It's not possible
1538 * to traverse list in reverse under rcu_read_lock
1540 mutex_lock(&team
->lock
);
1541 list_for_each_entry(port
, &team
->port_list
, list
) {
1542 err
= dev_set_mtu(port
->dev
, new_mtu
);
1544 netdev_err(dev
, "Device %s failed to change mtu",
1549 mutex_unlock(&team
->lock
);
1556 list_for_each_entry_continue_reverse(port
, &team
->port_list
, list
)
1557 dev_set_mtu(port
->dev
, dev
->mtu
);
1558 mutex_unlock(&team
->lock
);
1563 static struct rtnl_link_stats64
*
1564 team_get_stats64(struct net_device
*dev
, struct rtnl_link_stats64
*stats
)
1566 struct team
*team
= netdev_priv(dev
);
1567 struct team_pcpu_stats
*p
;
1568 u64 rx_packets
, rx_bytes
, rx_multicast
, tx_packets
, tx_bytes
;
1569 u32 rx_dropped
= 0, tx_dropped
= 0;
1573 for_each_possible_cpu(i
) {
1574 p
= per_cpu_ptr(team
->pcpu_stats
, i
);
1576 start
= u64_stats_fetch_begin_bh(&p
->syncp
);
1577 rx_packets
= p
->rx_packets
;
1578 rx_bytes
= p
->rx_bytes
;
1579 rx_multicast
= p
->rx_multicast
;
1580 tx_packets
= p
->tx_packets
;
1581 tx_bytes
= p
->tx_bytes
;
1582 } while (u64_stats_fetch_retry_bh(&p
->syncp
, start
));
1584 stats
->rx_packets
+= rx_packets
;
1585 stats
->rx_bytes
+= rx_bytes
;
1586 stats
->multicast
+= rx_multicast
;
1587 stats
->tx_packets
+= tx_packets
;
1588 stats
->tx_bytes
+= tx_bytes
;
1590 * rx_dropped & tx_dropped are u32, updated
1591 * without syncp protection.
1593 rx_dropped
+= p
->rx_dropped
;
1594 tx_dropped
+= p
->tx_dropped
;
1596 stats
->rx_dropped
= rx_dropped
;
1597 stats
->tx_dropped
= tx_dropped
;
1601 static int team_vlan_rx_add_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1603 struct team
*team
= netdev_priv(dev
);
1604 struct team_port
*port
;
1608 * Alhough this is reader, it's guarded by team lock. It's not possible
1609 * to traverse list in reverse under rcu_read_lock
1611 mutex_lock(&team
->lock
);
1612 list_for_each_entry(port
, &team
->port_list
, list
) {
1613 err
= vlan_vid_add(port
->dev
, proto
, vid
);
1617 mutex_unlock(&team
->lock
);
1622 list_for_each_entry_continue_reverse(port
, &team
->port_list
, list
)
1623 vlan_vid_del(port
->dev
, proto
, vid
);
1624 mutex_unlock(&team
->lock
);
1629 static int team_vlan_rx_kill_vid(struct net_device
*dev
, __be16 proto
, u16 vid
)
1631 struct team
*team
= netdev_priv(dev
);
1632 struct team_port
*port
;
1635 list_for_each_entry_rcu(port
, &team
->port_list
, list
)
1636 vlan_vid_del(port
->dev
, proto
, vid
);
1642 #ifdef CONFIG_NET_POLL_CONTROLLER
1643 static void team_poll_controller(struct net_device
*dev
)
1647 static void __team_netpoll_cleanup(struct team
*team
)
1649 struct team_port
*port
;
1651 list_for_each_entry(port
, &team
->port_list
, list
)
1652 team_port_disable_netpoll(port
);
1655 static void team_netpoll_cleanup(struct net_device
*dev
)
1657 struct team
*team
= netdev_priv(dev
);
1659 mutex_lock(&team
->lock
);
1660 __team_netpoll_cleanup(team
);
1661 mutex_unlock(&team
->lock
);
1664 static int team_netpoll_setup(struct net_device
*dev
,
1665 struct netpoll_info
*npifo
, gfp_t gfp
)
1667 struct team
*team
= netdev_priv(dev
);
1668 struct team_port
*port
;
1671 mutex_lock(&team
->lock
);
1672 list_for_each_entry(port
, &team
->port_list
, list
) {
1673 err
= team_port_enable_netpoll(team
, port
, gfp
);
1675 __team_netpoll_cleanup(team
);
1679 mutex_unlock(&team
->lock
);
1684 static int team_add_slave(struct net_device
*dev
, struct net_device
*port_dev
)
1686 struct team
*team
= netdev_priv(dev
);
1689 mutex_lock(&team
->lock
);
1690 err
= team_port_add(team
, port_dev
);
1691 mutex_unlock(&team
->lock
);
1695 static int team_del_slave(struct net_device
*dev
, struct net_device
*port_dev
)
1697 struct team
*team
= netdev_priv(dev
);
1700 mutex_lock(&team
->lock
);
1701 err
= team_port_del(team
, port_dev
);
1702 mutex_unlock(&team
->lock
);
1706 static netdev_features_t
team_fix_features(struct net_device
*dev
,
1707 netdev_features_t features
)
1709 struct team_port
*port
;
1710 struct team
*team
= netdev_priv(dev
);
1711 netdev_features_t mask
;
1714 features
&= ~NETIF_F_ONE_FOR_ALL
;
1715 features
|= NETIF_F_ALL_FOR_ALL
;
1718 list_for_each_entry_rcu(port
, &team
->port_list
, list
) {
1719 features
= netdev_increment_features(features
,
1720 port
->dev
->features
,
1727 static int team_change_carrier(struct net_device
*dev
, bool new_carrier
)
1729 struct team
*team
= netdev_priv(dev
);
1731 team
->user_carrier_enabled
= true;
1734 netif_carrier_on(dev
);
1736 netif_carrier_off(dev
);
1740 static const struct net_device_ops team_netdev_ops
= {
1741 .ndo_init
= team_init
,
1742 .ndo_uninit
= team_uninit
,
1743 .ndo_open
= team_open
,
1744 .ndo_stop
= team_close
,
1745 .ndo_start_xmit
= team_xmit
,
1746 .ndo_select_queue
= team_select_queue
,
1747 .ndo_change_rx_flags
= team_change_rx_flags
,
1748 .ndo_set_rx_mode
= team_set_rx_mode
,
1749 .ndo_set_mac_address
= team_set_mac_address
,
1750 .ndo_change_mtu
= team_change_mtu
,
1751 .ndo_get_stats64
= team_get_stats64
,
1752 .ndo_vlan_rx_add_vid
= team_vlan_rx_add_vid
,
1753 .ndo_vlan_rx_kill_vid
= team_vlan_rx_kill_vid
,
1754 #ifdef CONFIG_NET_POLL_CONTROLLER
1755 .ndo_poll_controller
= team_poll_controller
,
1756 .ndo_netpoll_setup
= team_netpoll_setup
,
1757 .ndo_netpoll_cleanup
= team_netpoll_cleanup
,
1759 .ndo_add_slave
= team_add_slave
,
1760 .ndo_del_slave
= team_del_slave
,
1761 .ndo_fix_features
= team_fix_features
,
1762 .ndo_change_carrier
= team_change_carrier
,
1765 /***********************
1767 ***********************/
1769 static void team_ethtool_get_drvinfo(struct net_device
*dev
,
1770 struct ethtool_drvinfo
*drvinfo
)
1772 strlcpy(drvinfo
->driver
, DRV_NAME
, sizeof(drvinfo
->driver
));
1773 strlcpy(drvinfo
->version
, UTS_RELEASE
, sizeof(drvinfo
->version
));
1776 static const struct ethtool_ops team_ethtool_ops
= {
1777 .get_drvinfo
= team_ethtool_get_drvinfo
,
1778 .get_link
= ethtool_op_get_link
,
1781 /***********************
1782 * rt netlink interface
1783 ***********************/
1785 static void team_setup_by_port(struct net_device
*dev
,
1786 struct net_device
*port_dev
)
1788 dev
->header_ops
= port_dev
->header_ops
;
1789 dev
->type
= port_dev
->type
;
1790 dev
->hard_header_len
= port_dev
->hard_header_len
;
1791 dev
->addr_len
= port_dev
->addr_len
;
1792 dev
->mtu
= port_dev
->mtu
;
1793 memcpy(dev
->broadcast
, port_dev
->broadcast
, port_dev
->addr_len
);
1794 memcpy(dev
->dev_addr
, port_dev
->dev_addr
, port_dev
->addr_len
);
1797 static int team_dev_type_check_change(struct net_device
*dev
,
1798 struct net_device
*port_dev
)
1800 struct team
*team
= netdev_priv(dev
);
1801 char *portname
= port_dev
->name
;
1804 if (dev
->type
== port_dev
->type
)
1806 if (!list_empty(&team
->port_list
)) {
1807 netdev_err(dev
, "Device %s is of different type\n", portname
);
1810 err
= call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE
, dev
);
1811 err
= notifier_to_errno(err
);
1813 netdev_err(dev
, "Refused to change device type\n");
1818 team_setup_by_port(dev
, port_dev
);
1819 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE
, dev
);
1823 static void team_setup(struct net_device
*dev
)
1827 dev
->netdev_ops
= &team_netdev_ops
;
1828 dev
->ethtool_ops
= &team_ethtool_ops
;
1829 dev
->destructor
= team_destructor
;
1830 dev
->tx_queue_len
= 0;
1831 dev
->flags
|= IFF_MULTICAST
;
1832 dev
->priv_flags
&= ~(IFF_XMIT_DST_RELEASE
| IFF_TX_SKB_SHARING
);
1835 * Indicate we support unicast address filtering. That way core won't
1836 * bring us to promisc mode in case a unicast addr is added.
1837 * Let this up to underlay drivers.
1839 dev
->priv_flags
|= IFF_UNICAST_FLT
| IFF_LIVE_ADDR_CHANGE
;
1841 dev
->features
|= NETIF_F_LLTX
;
1842 dev
->features
|= NETIF_F_GRO
;
1843 dev
->hw_features
= TEAM_VLAN_FEATURES
|
1844 NETIF_F_HW_VLAN_CTAG_TX
|
1845 NETIF_F_HW_VLAN_CTAG_RX
|
1846 NETIF_F_HW_VLAN_CTAG_FILTER
;
1848 dev
->hw_features
&= ~(NETIF_F_ALL_CSUM
& ~NETIF_F_HW_CSUM
);
1849 dev
->features
|= dev
->hw_features
;
1852 static int team_newlink(struct net
*src_net
, struct net_device
*dev
,
1853 struct nlattr
*tb
[], struct nlattr
*data
[])
1857 if (tb
[IFLA_ADDRESS
] == NULL
)
1858 eth_hw_addr_random(dev
);
1860 err
= register_netdevice(dev
);
1867 static int team_validate(struct nlattr
*tb
[], struct nlattr
*data
[])
1869 if (tb
[IFLA_ADDRESS
]) {
1870 if (nla_len(tb
[IFLA_ADDRESS
]) != ETH_ALEN
)
1872 if (!is_valid_ether_addr(nla_data(tb
[IFLA_ADDRESS
])))
1873 return -EADDRNOTAVAIL
;
1878 static unsigned int team_get_num_tx_queues(void)
1880 return TEAM_DEFAULT_NUM_TX_QUEUES
;
1883 static unsigned int team_get_num_rx_queues(void)
1885 return TEAM_DEFAULT_NUM_RX_QUEUES
;
1888 static struct rtnl_link_ops team_link_ops __read_mostly
= {
1890 .priv_size
= sizeof(struct team
),
1891 .setup
= team_setup
,
1892 .newlink
= team_newlink
,
1893 .validate
= team_validate
,
1894 .get_num_tx_queues
= team_get_num_tx_queues
,
1895 .get_num_rx_queues
= team_get_num_rx_queues
,
1899 /***********************************
1900 * Generic netlink custom interface
1901 ***********************************/
1903 static struct genl_family team_nl_family
= {
1904 .id
= GENL_ID_GENERATE
,
1905 .name
= TEAM_GENL_NAME
,
1906 .version
= TEAM_GENL_VERSION
,
1907 .maxattr
= TEAM_ATTR_MAX
,
1911 static const struct nla_policy team_nl_policy
[TEAM_ATTR_MAX
+ 1] = {
1912 [TEAM_ATTR_UNSPEC
] = { .type
= NLA_UNSPEC
, },
1913 [TEAM_ATTR_TEAM_IFINDEX
] = { .type
= NLA_U32
},
1914 [TEAM_ATTR_LIST_OPTION
] = { .type
= NLA_NESTED
},
1915 [TEAM_ATTR_LIST_PORT
] = { .type
= NLA_NESTED
},
1918 static const struct nla_policy
1919 team_nl_option_policy
[TEAM_ATTR_OPTION_MAX
+ 1] = {
1920 [TEAM_ATTR_OPTION_UNSPEC
] = { .type
= NLA_UNSPEC
, },
1921 [TEAM_ATTR_OPTION_NAME
] = {
1923 .len
= TEAM_STRING_MAX_LEN
,
1925 [TEAM_ATTR_OPTION_CHANGED
] = { .type
= NLA_FLAG
},
1926 [TEAM_ATTR_OPTION_TYPE
] = { .type
= NLA_U8
},
1927 [TEAM_ATTR_OPTION_DATA
] = { .type
= NLA_BINARY
},
1930 static int team_nl_cmd_noop(struct sk_buff
*skb
, struct genl_info
*info
)
1932 struct sk_buff
*msg
;
1936 msg
= nlmsg_new(NLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
1940 hdr
= genlmsg_put(msg
, info
->snd_portid
, info
->snd_seq
,
1941 &team_nl_family
, 0, TEAM_CMD_NOOP
);
1947 genlmsg_end(msg
, hdr
);
1949 return genlmsg_unicast(genl_info_net(info
), msg
, info
->snd_portid
);
1958 * Netlink cmd functions should be locked by following two functions.
1959 * Since dev gets held here, that ensures dev won't disappear in between.
1961 static struct team
*team_nl_team_get(struct genl_info
*info
)
1963 struct net
*net
= genl_info_net(info
);
1965 struct net_device
*dev
;
1968 if (!info
->attrs
[TEAM_ATTR_TEAM_IFINDEX
])
1971 ifindex
= nla_get_u32(info
->attrs
[TEAM_ATTR_TEAM_IFINDEX
]);
1972 dev
= dev_get_by_index(net
, ifindex
);
1973 if (!dev
|| dev
->netdev_ops
!= &team_netdev_ops
) {
1979 team
= netdev_priv(dev
);
1980 mutex_lock(&team
->lock
);
1984 static void team_nl_team_put(struct team
*team
)
1986 mutex_unlock(&team
->lock
);
1990 typedef int team_nl_send_func_t(struct sk_buff
*skb
,
1991 struct team
*team
, u32 portid
);
1993 static int team_nl_send_unicast(struct sk_buff
*skb
, struct team
*team
, u32 portid
)
1995 return genlmsg_unicast(dev_net(team
->dev
), skb
, portid
);
1998 static int team_nl_fill_one_option_get(struct sk_buff
*skb
, struct team
*team
,
1999 struct team_option_inst
*opt_inst
)
2001 struct nlattr
*option_item
;
2002 struct team_option
*option
= opt_inst
->option
;
2003 struct team_option_inst_info
*opt_inst_info
= &opt_inst
->info
;
2004 struct team_gsetter_ctx ctx
;
2007 ctx
.info
= opt_inst_info
;
2008 err
= team_option_get(team
, opt_inst
, &ctx
);
2012 option_item
= nla_nest_start(skb
, TEAM_ATTR_ITEM_OPTION
);
2016 if (nla_put_string(skb
, TEAM_ATTR_OPTION_NAME
, option
->name
))
2018 if (opt_inst_info
->port
&&
2019 nla_put_u32(skb
, TEAM_ATTR_OPTION_PORT_IFINDEX
,
2020 opt_inst_info
->port
->dev
->ifindex
))
2022 if (opt_inst
->option
->array_size
&&
2023 nla_put_u32(skb
, TEAM_ATTR_OPTION_ARRAY_INDEX
,
2024 opt_inst_info
->array_index
))
2027 switch (option
->type
) {
2028 case TEAM_OPTION_TYPE_U32
:
2029 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_U32
))
2031 if (nla_put_u32(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.u32_val
))
2034 case TEAM_OPTION_TYPE_STRING
:
2035 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_STRING
))
2037 if (nla_put_string(skb
, TEAM_ATTR_OPTION_DATA
,
2041 case TEAM_OPTION_TYPE_BINARY
:
2042 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_BINARY
))
2044 if (nla_put(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.bin_val
.len
,
2045 ctx
.data
.bin_val
.ptr
))
2048 case TEAM_OPTION_TYPE_BOOL
:
2049 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_FLAG
))
2051 if (ctx
.data
.bool_val
&&
2052 nla_put_flag(skb
, TEAM_ATTR_OPTION_DATA
))
2055 case TEAM_OPTION_TYPE_S32
:
2056 if (nla_put_u8(skb
, TEAM_ATTR_OPTION_TYPE
, NLA_S32
))
2058 if (nla_put_s32(skb
, TEAM_ATTR_OPTION_DATA
, ctx
.data
.s32_val
))
2064 if (opt_inst
->removed
&& nla_put_flag(skb
, TEAM_ATTR_OPTION_REMOVED
))
2066 if (opt_inst
->changed
) {
2067 if (nla_put_flag(skb
, TEAM_ATTR_OPTION_CHANGED
))
2069 opt_inst
->changed
= false;
2071 nla_nest_end(skb
, option_item
);
2075 nla_nest_cancel(skb
, option_item
);
2079 static int __send_and_alloc_skb(struct sk_buff
**pskb
,
2080 struct team
*team
, u32 portid
,
2081 team_nl_send_func_t
*send_func
)
2086 err
= send_func(*pskb
, team
, portid
);
2090 *pskb
= genlmsg_new(GENLMSG_DEFAULT_SIZE
, GFP_KERNEL
);
2096 static int team_nl_send_options_get(struct team
*team
, u32 portid
, u32 seq
,
2097 int flags
, team_nl_send_func_t
*send_func
,
2098 struct list_head
*sel_opt_inst_list
)
2100 struct nlattr
*option_list
;
2101 struct nlmsghdr
*nlh
;
2103 struct team_option_inst
*opt_inst
;
2105 struct sk_buff
*skb
= NULL
;
2109 opt_inst
= list_first_entry(sel_opt_inst_list
,
2110 struct team_option_inst
, tmp_list
);
2113 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2117 hdr
= genlmsg_put(skb
, portid
, seq
, &team_nl_family
, flags
| NLM_F_MULTI
,
2118 TEAM_CMD_OPTIONS_GET
);
2122 if (nla_put_u32(skb
, TEAM_ATTR_TEAM_IFINDEX
, team
->dev
->ifindex
))
2123 goto nla_put_failure
;
2124 option_list
= nla_nest_start(skb
, TEAM_ATTR_LIST_OPTION
);
2126 goto nla_put_failure
;
2130 list_for_each_entry_from(opt_inst
, sel_opt_inst_list
, tmp_list
) {
2131 err
= team_nl_fill_one_option_get(skb
, team
, opt_inst
);
2133 if (err
== -EMSGSIZE
) {
2144 nla_nest_end(skb
, option_list
);
2145 genlmsg_end(skb
, hdr
);
2150 nlh
= nlmsg_put(skb
, portid
, seq
, NLMSG_DONE
, 0, flags
| NLM_F_MULTI
);
2152 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2158 return send_func(skb
, team
, portid
);
2163 genlmsg_cancel(skb
, hdr
);
2168 static int team_nl_cmd_options_get(struct sk_buff
*skb
, struct genl_info
*info
)
2171 struct team_option_inst
*opt_inst
;
2173 LIST_HEAD(sel_opt_inst_list
);
2175 team
= team_nl_team_get(info
);
2179 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
)
2180 list_add_tail(&opt_inst
->tmp_list
, &sel_opt_inst_list
);
2181 err
= team_nl_send_options_get(team
, info
->snd_portid
, info
->snd_seq
,
2182 NLM_F_ACK
, team_nl_send_unicast
,
2183 &sel_opt_inst_list
);
2185 team_nl_team_put(team
);
2190 static int team_nl_send_event_options_get(struct team
*team
,
2191 struct list_head
*sel_opt_inst_list
);
2193 static int team_nl_cmd_options_set(struct sk_buff
*skb
, struct genl_info
*info
)
2198 struct nlattr
*nl_option
;
2199 LIST_HEAD(opt_inst_list
);
2201 team
= team_nl_team_get(info
);
2206 if (!info
->attrs
[TEAM_ATTR_LIST_OPTION
]) {
2211 nla_for_each_nested(nl_option
, info
->attrs
[TEAM_ATTR_LIST_OPTION
], i
) {
2212 struct nlattr
*opt_attrs
[TEAM_ATTR_OPTION_MAX
+ 1];
2213 struct nlattr
*attr
;
2214 struct nlattr
*attr_data
;
2215 enum team_option_type opt_type
;
2216 int opt_port_ifindex
= 0; /* != 0 for per-port options */
2217 u32 opt_array_index
= 0;
2218 bool opt_is_array
= false;
2219 struct team_option_inst
*opt_inst
;
2221 bool opt_found
= false;
2223 if (nla_type(nl_option
) != TEAM_ATTR_ITEM_OPTION
) {
2227 err
= nla_parse_nested(opt_attrs
, TEAM_ATTR_OPTION_MAX
,
2228 nl_option
, team_nl_option_policy
);
2231 if (!opt_attrs
[TEAM_ATTR_OPTION_NAME
] ||
2232 !opt_attrs
[TEAM_ATTR_OPTION_TYPE
]) {
2236 switch (nla_get_u8(opt_attrs
[TEAM_ATTR_OPTION_TYPE
])) {
2238 opt_type
= TEAM_OPTION_TYPE_U32
;
2241 opt_type
= TEAM_OPTION_TYPE_STRING
;
2244 opt_type
= TEAM_OPTION_TYPE_BINARY
;
2247 opt_type
= TEAM_OPTION_TYPE_BOOL
;
2250 opt_type
= TEAM_OPTION_TYPE_S32
;
2256 attr_data
= opt_attrs
[TEAM_ATTR_OPTION_DATA
];
2257 if (opt_type
!= TEAM_OPTION_TYPE_BOOL
&& !attr_data
) {
2262 opt_name
= nla_data(opt_attrs
[TEAM_ATTR_OPTION_NAME
]);
2263 attr
= opt_attrs
[TEAM_ATTR_OPTION_PORT_IFINDEX
];
2265 opt_port_ifindex
= nla_get_u32(attr
);
2267 attr
= opt_attrs
[TEAM_ATTR_OPTION_ARRAY_INDEX
];
2269 opt_is_array
= true;
2270 opt_array_index
= nla_get_u32(attr
);
2273 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
2274 struct team_option
*option
= opt_inst
->option
;
2275 struct team_gsetter_ctx ctx
;
2276 struct team_option_inst_info
*opt_inst_info
;
2279 opt_inst_info
= &opt_inst
->info
;
2280 tmp_ifindex
= opt_inst_info
->port
?
2281 opt_inst_info
->port
->dev
->ifindex
: 0;
2282 if (option
->type
!= opt_type
||
2283 strcmp(option
->name
, opt_name
) ||
2284 tmp_ifindex
!= opt_port_ifindex
||
2285 (option
->array_size
&& !opt_is_array
) ||
2286 opt_inst_info
->array_index
!= opt_array_index
)
2289 ctx
.info
= opt_inst_info
;
2291 case TEAM_OPTION_TYPE_U32
:
2292 ctx
.data
.u32_val
= nla_get_u32(attr_data
);
2294 case TEAM_OPTION_TYPE_STRING
:
2295 if (nla_len(attr_data
) > TEAM_STRING_MAX_LEN
) {
2299 ctx
.data
.str_val
= nla_data(attr_data
);
2301 case TEAM_OPTION_TYPE_BINARY
:
2302 ctx
.data
.bin_val
.len
= nla_len(attr_data
);
2303 ctx
.data
.bin_val
.ptr
= nla_data(attr_data
);
2305 case TEAM_OPTION_TYPE_BOOL
:
2306 ctx
.data
.bool_val
= attr_data
? true : false;
2308 case TEAM_OPTION_TYPE_S32
:
2309 ctx
.data
.s32_val
= nla_get_s32(attr_data
);
2314 err
= team_option_set(team
, opt_inst
, &ctx
);
2317 opt_inst
->changed
= true;
2318 list_add(&opt_inst
->tmp_list
, &opt_inst_list
);
2326 err
= team_nl_send_event_options_get(team
, &opt_inst_list
);
2329 team_nl_team_put(team
);
2334 static int team_nl_fill_one_port_get(struct sk_buff
*skb
,
2335 struct team_port
*port
)
2337 struct nlattr
*port_item
;
2339 port_item
= nla_nest_start(skb
, TEAM_ATTR_ITEM_PORT
);
2342 if (nla_put_u32(skb
, TEAM_ATTR_PORT_IFINDEX
, port
->dev
->ifindex
))
2344 if (port
->changed
) {
2345 if (nla_put_flag(skb
, TEAM_ATTR_PORT_CHANGED
))
2347 port
->changed
= false;
2349 if ((port
->removed
&&
2350 nla_put_flag(skb
, TEAM_ATTR_PORT_REMOVED
)) ||
2351 (port
->state
.linkup
&&
2352 nla_put_flag(skb
, TEAM_ATTR_PORT_LINKUP
)) ||
2353 nla_put_u32(skb
, TEAM_ATTR_PORT_SPEED
, port
->state
.speed
) ||
2354 nla_put_u8(skb
, TEAM_ATTR_PORT_DUPLEX
, port
->state
.duplex
))
2356 nla_nest_end(skb
, port_item
);
2360 nla_nest_cancel(skb
, port_item
);
2364 static int team_nl_send_port_list_get(struct team
*team
, u32 portid
, u32 seq
,
2365 int flags
, team_nl_send_func_t
*send_func
,
2366 struct team_port
*one_port
)
2368 struct nlattr
*port_list
;
2369 struct nlmsghdr
*nlh
;
2371 struct team_port
*port
;
2373 struct sk_buff
*skb
= NULL
;
2377 port
= list_first_entry(&team
->port_list
, struct team_port
, list
);
2380 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2384 hdr
= genlmsg_put(skb
, portid
, seq
, &team_nl_family
, flags
| NLM_F_MULTI
,
2385 TEAM_CMD_PORT_LIST_GET
);
2389 if (nla_put_u32(skb
, TEAM_ATTR_TEAM_IFINDEX
, team
->dev
->ifindex
))
2390 goto nla_put_failure
;
2391 port_list
= nla_nest_start(skb
, TEAM_ATTR_LIST_PORT
);
2393 goto nla_put_failure
;
2398 /* If one port is selected, called wants to send port list containing
2399 * only this port. Otherwise go through all listed ports and send all
2402 err
= team_nl_fill_one_port_get(skb
, one_port
);
2406 list_for_each_entry(port
, &team
->port_list
, list
) {
2407 err
= team_nl_fill_one_port_get(skb
, port
);
2409 if (err
== -EMSGSIZE
) {
2421 nla_nest_end(skb
, port_list
);
2422 genlmsg_end(skb
, hdr
);
2427 nlh
= nlmsg_put(skb
, portid
, seq
, NLMSG_DONE
, 0, flags
| NLM_F_MULTI
);
2429 err
= __send_and_alloc_skb(&skb
, team
, portid
, send_func
);
2435 return send_func(skb
, team
, portid
);
2440 genlmsg_cancel(skb
, hdr
);
2445 static int team_nl_cmd_port_list_get(struct sk_buff
*skb
,
2446 struct genl_info
*info
)
2451 team
= team_nl_team_get(info
);
2455 err
= team_nl_send_port_list_get(team
, info
->snd_portid
, info
->snd_seq
,
2456 NLM_F_ACK
, team_nl_send_unicast
, NULL
);
2458 team_nl_team_put(team
);
2463 static struct genl_ops team_nl_ops
[] = {
2465 .cmd
= TEAM_CMD_NOOP
,
2466 .doit
= team_nl_cmd_noop
,
2467 .policy
= team_nl_policy
,
2470 .cmd
= TEAM_CMD_OPTIONS_SET
,
2471 .doit
= team_nl_cmd_options_set
,
2472 .policy
= team_nl_policy
,
2473 .flags
= GENL_ADMIN_PERM
,
2476 .cmd
= TEAM_CMD_OPTIONS_GET
,
2477 .doit
= team_nl_cmd_options_get
,
2478 .policy
= team_nl_policy
,
2479 .flags
= GENL_ADMIN_PERM
,
2482 .cmd
= TEAM_CMD_PORT_LIST_GET
,
2483 .doit
= team_nl_cmd_port_list_get
,
2484 .policy
= team_nl_policy
,
2485 .flags
= GENL_ADMIN_PERM
,
2489 static struct genl_multicast_group team_change_event_mcgrp
= {
2490 .name
= TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME
,
2493 static int team_nl_send_multicast(struct sk_buff
*skb
,
2494 struct team
*team
, u32 portid
)
2496 return genlmsg_multicast_netns(dev_net(team
->dev
), skb
, 0,
2497 team_change_event_mcgrp
.id
, GFP_KERNEL
);
2500 static int team_nl_send_event_options_get(struct team
*team
,
2501 struct list_head
*sel_opt_inst_list
)
2503 return team_nl_send_options_get(team
, 0, 0, 0, team_nl_send_multicast
,
2507 static int team_nl_send_event_port_get(struct team
*team
,
2508 struct team_port
*port
)
2510 return team_nl_send_port_list_get(team
, 0, 0, 0, team_nl_send_multicast
,
2514 static int team_nl_init(void)
2518 err
= genl_register_family_with_ops(&team_nl_family
, team_nl_ops
,
2519 ARRAY_SIZE(team_nl_ops
));
2523 err
= genl_register_mc_group(&team_nl_family
, &team_change_event_mcgrp
);
2525 goto err_change_event_grp_reg
;
2529 err_change_event_grp_reg
:
2530 genl_unregister_family(&team_nl_family
);
2535 static void team_nl_fini(void)
2537 genl_unregister_family(&team_nl_family
);
2545 static void __team_options_change_check(struct team
*team
)
2548 struct team_option_inst
*opt_inst
;
2549 LIST_HEAD(sel_opt_inst_list
);
2551 list_for_each_entry(opt_inst
, &team
->option_inst_list
, list
) {
2552 if (opt_inst
->changed
)
2553 list_add_tail(&opt_inst
->tmp_list
, &sel_opt_inst_list
);
2555 err
= team_nl_send_event_options_get(team
, &sel_opt_inst_list
);
2556 if (err
&& err
!= -ESRCH
)
2557 netdev_warn(team
->dev
, "Failed to send options change via netlink (err %d)\n",
2561 /* rtnl lock is held */
2563 static void __team_port_change_send(struct team_port
*port
, bool linkup
)
2567 port
->changed
= true;
2568 port
->state
.linkup
= linkup
;
2569 team_refresh_port_linkup(port
);
2571 struct ethtool_cmd ecmd
;
2573 err
= __ethtool_get_settings(port
->dev
, &ecmd
);
2575 port
->state
.speed
= ethtool_cmd_speed(&ecmd
);
2576 port
->state
.duplex
= ecmd
.duplex
;
2580 port
->state
.speed
= 0;
2581 port
->state
.duplex
= 0;
2584 err
= team_nl_send_event_port_get(port
->team
, port
);
2585 if (err
&& err
!= -ESRCH
)
2586 netdev_warn(port
->team
->dev
, "Failed to send port change of device %s via netlink (err %d)\n",
2587 port
->dev
->name
, err
);
2591 static void __team_carrier_check(struct team
*team
)
2593 struct team_port
*port
;
2596 if (team
->user_carrier_enabled
)
2599 team_linkup
= false;
2600 list_for_each_entry(port
, &team
->port_list
, list
) {
2608 netif_carrier_on(team
->dev
);
2610 netif_carrier_off(team
->dev
);
2613 static void __team_port_change_check(struct team_port
*port
, bool linkup
)
2615 if (port
->state
.linkup
!= linkup
)
2616 __team_port_change_send(port
, linkup
);
2617 __team_carrier_check(port
->team
);
2620 static void __team_port_change_port_added(struct team_port
*port
, bool linkup
)
2622 __team_port_change_send(port
, linkup
);
2623 __team_carrier_check(port
->team
);
2626 static void __team_port_change_port_removed(struct team_port
*port
)
2628 port
->removed
= true;
2629 __team_port_change_send(port
, false);
2630 __team_carrier_check(port
->team
);
2633 static void team_port_change_check(struct team_port
*port
, bool linkup
)
2635 struct team
*team
= port
->team
;
2637 mutex_lock(&team
->lock
);
2638 __team_port_change_check(port
, linkup
);
2639 mutex_unlock(&team
->lock
);
2643 /************************************
2644 * Net device notifier event handler
2645 ************************************/
2647 static int team_device_event(struct notifier_block
*unused
,
2648 unsigned long event
, void *ptr
)
2650 struct net_device
*dev
= netdev_notifier_info_to_dev(ptr
);
2651 struct team_port
*port
;
2653 port
= team_port_get_rtnl(dev
);
2659 if (netif_carrier_ok(dev
))
2660 team_port_change_check(port
, true);
2662 team_port_change_check(port
, false);
2664 if (netif_running(port
->dev
))
2665 team_port_change_check(port
,
2666 !!netif_carrier_ok(port
->dev
));
2668 case NETDEV_UNREGISTER
:
2669 team_del_slave(port
->team
->dev
, dev
);
2671 case NETDEV_FEAT_CHANGE
:
2672 team_compute_features(port
->team
);
2674 case NETDEV_CHANGEMTU
:
2675 /* Forbid to change mtu of underlaying device */
2677 case NETDEV_PRE_TYPE_CHANGE
:
2678 /* Forbid to change type of underlaying device */
2684 static struct notifier_block team_notifier_block __read_mostly
= {
2685 .notifier_call
= team_device_event
,
2689 /***********************
2690 * Module init and exit
2691 ***********************/
2693 static int __init
team_module_init(void)
2697 register_netdevice_notifier(&team_notifier_block
);
2699 err
= rtnl_link_register(&team_link_ops
);
2703 err
= team_nl_init();
2710 rtnl_link_unregister(&team_link_ops
);
2713 unregister_netdevice_notifier(&team_notifier_block
);
2718 static void __exit
team_module_exit(void)
2721 rtnl_link_unregister(&team_link_ops
);
2722 unregister_netdevice_notifier(&team_notifier_block
);
2725 module_init(team_module_init
);
2726 module_exit(team_module_exit
);
2728 MODULE_LICENSE("GPL v2");
2729 MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
2730 MODULE_DESCRIPTION("Ethernet team device driver");
2731 MODULE_ALIAS_RTNL_LINK(DRV_NAME
);